TY  - BOOK
AU  - Purohit,S.S., Sexena, M.M.
AU  - x
TI  - Water, life and poliution: x
SN  - 818503141X
U1  - 628.1/P985w 
PY  - 1990///
CY  - Bikaner(India)
PB  - Agro Botanical Pub.
KW  - Water-Pollution
N1  - Includes
ER  -